密肥对矮秆紧凑型杂交糯高粱产量和品质的影响
Effect of Dense Fertilizer on Yield and Quality of Dwarf and Compact Hybrid Waxy Sorghum
刘天朋 1杨凯 2陈琳 1龙文靖 1邓昊 2孙远涛 1向箭宇 1倪先林1
作者信息
- 1. 四川省农业科学院水稻高粱研究所/国家高粱改良中心四川分中心,四川泸州 646000
- 2. 四川郎酒股份有限公司,四川泸州 646001
- 折叠
摘要
为探讨种植密度和施氮量对矮秆紧凑型杂交糯高粱产量和品质的影响,采用裂-裂区试验设计,主区为高粱品种,设'金糯梁1号'、'机糯梁1号'2个处理;裂区为种植密度,设12万、13.5万、15万、16.5万株/hm24个处理;裂-裂区为施氮量,设75、120、165 kg/hm23个处理.收获期调查分析籽粒产量及相关性状、品质指标.研究表明,品种、密度和施氮量对籽粒产量与主要品质性状均影响显著.随着种植密度的增加,增加施氮量对产量的影响效应逐渐变小,适当增加矮秆紧凑型杂交糯高粱种植密度可以作为氮肥减施技术的有效途径.适宜增密减氮还可以有效提高高粱粗淀粉与单宁含量.
Abstract
To study the effects of planting density and nitrogen application on yield and quality of dwarf compact hybrid glutinous sorghum,the split-crack zone design was adopted in the experiment,and the main zone was sorghum variety.Two treatments were set,which were'Jinnuoliang No.1'and'Munnuoliang No.1'.The split area was the planting density,and the planting density was divided into 4 treatments,which were 120000,135000,150000 and 165000 plants/hm2;the splitting zone was nitrogen application rate,and nitrogen application rate was divided into three treatments,which were 75,120 and 165 kg/hm2.The grain yield,related characters and quality indexes were examined and analyzed at harvest time.The results showed that:variety,density and nitrogen application had significant effects on grain yield and main quality.With the increase of planting density,the effect of increasing nitrogen application rate on yield decreased gradually.Appropriately increasing planting density of dwarf compact hybrid glutinous sorghum could be employed as an effective way to reduce nitrogen application.Densification and nitrogen reduction can also effectively improve the crude starch and tannin quality of sorghum.
关键词
种植密度/施氮量/矮秆紧凑型/产量/品质Key words
planting density/nitrogen rate/dwarf compact/yield/quality引用本文复制引用
基金项目
四川省科技计划(2022ZDZX0016)
国家现代农业产业技术体系四川特色经作创新团队(SCCXTD-2022-12)
四川省科技成果转移转化示范项目(2022ZHCG0029)
德阳市科技计划(2022NZ024)
出版年
2024
国家科技期刊平台
NSTL
万方数据